package cn.com.niit.service;

import cn.com.niit.pojo.Merchant;

import java.util.List;


public interface MerchantService {
    void apply(Merchant merchant);
    List<Merchant> showAll(Merchant merchant);
    void fail(String userName);
    void ban(String userName);
    void unBan(String userName);
    Merchant showOne(String userName);

}
